net: ethernet: xilinx: Don't use NO_IRQ in xilinx

Fix ll_temac and emaclite drivers. Only Microblaze and Xilinx PPC
use then and both use NO_IRQ as 0. It will be removed in near future.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index 903a77b..f21addb 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -1091,7 +1091,7 @@
 
 	of_node_put(np); /* Finished with the DMA node; drop the reference */
 
-	if ((lp->rx_irq == NO_IRQ) || (lp->tx_irq == NO_IRQ)) {
+	if (!lp->rx_irq || !lp->tx_irq) {
 		dev_err(&op->dev, "could not determine irqs\n");
 		rc = -ENOMEM;
 		goto err_iounmap_2;